} __attribute((packed));
-
-/*
- * The size of the vmscsi_request has changed in win8. The
- * additional size is because of new elements added to the
- * structure. These elements are valid only when we are talking
- * to a win8 host.
- * Track the correction to size we need to apply. This value
- * will likely change during protocol negotiation but it is
- * valid to start by assuming pre-Win8.
- */
-static int vmscsi_size_delta = sizeof(struct vmscsi_win8_extension);
-
/*
* The list of storage protocols in order of preference.
*/
unsigned char target_id;
/*
+ * The size of the vmscsi_request has changed in win8. The
+ * additional size is because of new elements added to the
+ * structure. These elements are valid only when we are talking
+ * to a win8 host.
+ * Track the correction to size we need to apply. This value
+ * will likely change during protocol negotiation but it is
+ * valid to start by assuming pre-Win8.
+ */
+ int vmscsi_size_delta;
+
+ /*
* Max I/O, the device can support.
*/
u32 max_transfer_bytes;
ret = vmbus_sendpacket(device->channel, vstor_packet,
(sizeof(struct vstor_packet) -
- vmscsi_size_delta),
+ stor_device->vmscsi_size_delta),
(unsigned long)request,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
struct storvsc_cmd_request *request,
bool status_check)
{
+ struct storvsc_device *stor_device;
struct vstor_packet *vstor_packet;
int ret, t;
+ stor_device = get_out_stor_device(device);
+ if (!stor_device)
+ return -ENODEV;
+
vstor_packet = &request->vstor_packet;
init_completion(&request->wait_event);
ret = vmbus_sendpacket(device->channel, vstor_packet,
(sizeof(struct vstor_packet) -
- vmscsi_size_delta),
+ stor_device->vmscsi_size_delta),
(unsigned long)request,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
sense_buffer_size =
vmstor_protocols[i].sense_buffer_size;
- vmscsi_size_delta =
+ stor_device->vmscsi_size_delta =
vmstor_protocols[i].vmscsi_size_delta;
break;
if (request == &stor_device->init_request ||
request == &stor_device->reset_request) {
memcpy(&request->vstor_packet, packet,
- (sizeof(struct vstor_packet) - vmscsi_size_delta));
+ (sizeof(struct vstor_packet) - stor_device->vmscsi_size_delta));
complete(&request->wait_event);
} else {
storvsc_on_receive(stor_device, packet, request);
vstor_packet->flags |= REQUEST_COMPLETION_FLAG;
vstor_packet->vm_srb.length = (sizeof(struct vmscsi_request) -
- vmscsi_size_delta);
+ stor_device->vmscsi_size_delta);
vstor_packet->vm_srb.sense_info_length = sense_buffer_size;
request->payload, request->payload_sz,
vstor_packet,
(sizeof(struct vstor_packet) -
- vmscsi_size_delta),
+ stor_device->vmscsi_size_delta),
(unsigned long)request);
} else {
ret = vmbus_sendpacket(outgoing_channel, vstor_packet,
(sizeof(struct vstor_packet) -
- vmscsi_size_delta),
+ stor_device->vmscsi_size_delta),
(unsigned long)request,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
ret = vmbus_sendpacket(device->channel, vstor_packet,
(sizeof(struct vstor_packet) -
- vmscsi_size_delta),
+ stor_device->vmscsi_size_delta),
(unsigned long)&stor_device->reset_request,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
init_waitqueue_head(&stor_device->waiting_to_drain);
stor_device->device = device;
stor_device->host = host;
+ stor_device->vmscsi_size_delta = sizeof(struct vmscsi_win8_extension);
spin_lock_init(&stor_device->lock);
hv_set_drvdata(device, stor_device);